What is a mixed gas?

A gas containing two or more active components, or a non-active component in excess of the prescribed limit. A mixture of several gases is a common working medium in engineering. Mixed gases are often studied as ideal gases.

Dalton's law of partial pressure: the total pressure p of a mixture is equal to the sum of the partial pressures of its constituent gases. The partial pressure of each component gas is the pressure that the component gas has when it occupies the total volume of the mixture at the temperature of the mixed gas.

The composition of mixed gas.

The nature of the mixture depends on the type and composition of the constituent gases. There are three ways of representing the composition of a mixed gas.

1.Volume composition: composition of the gas volume and the total volume of the mixed gas ratio, ri, the so-called volume refers to the composition of the gas in the temperature and total pressure of the mixed gas exclusive volume.

2.Molar composition: a mole is a unit of mass. If the number of elementary units (atoms, molecules, ions, electrons, or other particles) contained in a system is equal to the number of 0.012 kilograms of carbon-12 atoms, the system has a mole of matter. The ratio of the number of moles of the constituent gas to the total number of moles of the mixed gas is expressed as xi

3.Mass component: the ratio of the mass of the constituent gas to the total mass of the mixed gas, expressed by wi

Properties of mixed gas.

Mixed gas as a kind of pure substances, often use or Moore Μ quality and the density of mixed gas or gas constant R is equal to the total each composition in the mixed gas density and its displacement components of the pressure and temperature and the product of the sum.